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An electrical potential analyser has been designed and constructed for the purpose of solving the three dimensional form of Laplace's equation, which has such wide uses in connexion with potential theory. The basic idea of the analyser is that, by means of an electrical analogy, a pure resistance network is used to solve the finite difference form of the potential equation, and a novel form of construction is employed which enables readings of a high order of accuracy to be obtained by the use of the instrument. The analyser has been used to solve several cases of potential flow around aeroplane wings of unconventional shape, but other problems involving the solution of Laplace's equation could equally well be solved by the use of the apparatus.
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S. C. Redshaw (1951) studied this question.
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